Primus Hosted PBX is a fully managed, business grade phone and
Internet communication service that uses VoIP technology over a
dedicated T1 line to the Primus network. A T1 line, also known as DS1,
is a widely used telecommunication signaling system used to transmit
voice and data between phones and computers at a rate of 1.544 bits
per second. Voice traffic on Primus' Hosted PBX service is not mixed
with any other traffic on the Internet and therefore is not exposed to
viruses, congestion and delays.

"Primus' Hosted PBX provides a fully-managed solution that uses
expert network design and engineering to ensure businesses have the
highest quality voice service," said AJ Byers, senior vice president,
Primus Business Services. "The Small and Medium Enterprise-sized
business is one of the customer groups that would benefit from Hosted
PBX. As a result, we have developed a product that eliminates both
capital investment and the risks associated with making incorrect
technology choices, two major concerns of the SME market."

Primus Hosted PBX requires minimal start-up costs and all
hardware, set-up and maintenance is covered in the cost of the
service. It eliminates the cost of owning and maintaining a system by
giving customers the ability to customize and outsource their
telephony needs. All phone lines and long distance calls between
offices are included in the cost of the service. With fixed monthly
charges, customers have a predictable monthly operating overhead that
can also have hardware added as the business grows.

"A hosted PBX offers several advantages over traditional
solutions, like Centrex and IP PBX," said Kevin Restivo, an analyst
with the SeaBoard Group in Toronto. "The hosted approach allows
growing businesses to build their communications capabilities as they
add people - there's no need to toss away their existing investment.
Hosted PBX also provides 24/7 access to key support staff - a luxury
that a mid-sized company could never justify on its own."

Hosted PBX is a fully managed solution designed for businesses
that have demanding staffing requirements, including seasonal
businesses, call centres, medical offices, real estate, staffing
agencies and organizations with multiple headquarters and mobile
workforces. The Hosted PBX System is infinitely scalable to adapt
easily to business growth or downsizing - an organization can have as
little as 10, to an infinite number of phones. The solution allows
companies to concentrate on core competencies instead of devoting
resources to maintaining telephony.

Primus' Hosted PBX adds enterprise level functionality for the SME
customer - features such as softphone allow remote workers direct
connectivity to the office network, website portal functionality, and
voicemail to e-mail integration allow workers to centrally manage and
customize their voice communication with the click of a button and
free 4-digit local calling between offices and remote workers lowers
costs by eliminating long distance charges.

"Our mid-sized technical staffing agency has been using Primus
Hosted PBX since February of this year after switching from a VoIP
system with another provider which had ongoing reliability issues,"
said Mike Berlin, Corporate Recruiter, CADRE. "Downtime is
unacceptable in our business. The switch to Primus has resulted in
zero downtime, superior customer service and significantly reduced our
monthly telephony expenditure."

About Primus Business Services

Primus Business Services is a leading provider of advanced voice
communications, data centre infrastructure and managed information
technology (IT) solutions for over 45,000 Canadian businesses of all
sizes. Its dedicated group of certified technicians, system
administrators and network engineers deliver and support innovative
solutions for over 55,000 businesses. As a division of Primus Canada,
Primus Business Services leverages a national network for voice and
data services, and a world-class telecom infrastructure.

About Primus Canada

Primus Telecommunications Canada Inc. is the largest alternative
communications carrier in Canada with over 1,000,000 customers. The
Company offers facilities-based voice, data, e-commerce, Web hosting,
VoIP and broadband Internet services utilizing ADSL2+ technology. As a
leading Internet service provider in Canada, Primus Canada has over
80,000 Internet subscribers served by a national network of Internet
points-of-presence (POPs) for dedicated and dial-up access. Primus
Canada also offers local services to businesses, bundling them with
its long distance and Internet services. The Company has a fully
redundant and diverse SONET network across Canada, extending from
Quebec City to Victoria. Primus Canada's national network consists of
nationwide switches with international connectivity through its parent
company's global network, ATM and IP nodes, and colocation facilities
at major cities across the country. These network elements provide an
integrated and converged backbone for all of PRIMUS Canada's voice,
data, VoIP, Internet private line and bundled services. The local
colocation network covers over three million households and businesses
in Canada utilizing next generation ADSL2+ technology, delivering
download speeds of up to 22 Mbps. Primus Canada is also one of
Canada's largest MVNO's (Mobile Virtual Network Operator) offering
Primus Wireless service over the Rogers Wireless network. Primus
Canada is a wholly-owned subsidiary of McLean, Virginia-based Primus
Telecommunications Group, Incorporated (OTCBB:PRTL). Primus Canada
news and information are available at the Company's Web site at
www.Primustel.ca.